Mother who goes to Tokyo to worry about sex treatment of her son

The mother who came to Tokyo from the countryside worried about the son who becomes adult and lives alone in Tokyo. The son who met after a long time grew up to be a splendid adult. The mother who had seen the son who had become such an adult after a long time felt the son to the son. The son also remembers with mother who loved it after a long time, and rejoices at the time of a child and becomes sweet to mother's mother. It is 8 hours that such two people are connected hot in a small apartment in one room.